bascially the reason is that we also run a DR mantis... and so to easily distinguish between the two (live and DR) the DR was historically set to a red background

I have now set the page title to be "SKMS_DR" instead of "MantisBT" to try and distinguish between them easily-at-a-glance etc.If I can't change the whole background to red, is there a way to reset the colour of this top banner where "SKMS_DR" is written to be red instead of black?